{"slug": "pychess", "name": "PyChess", "category": "other", "category_name": "Other software", "description": "", "recommenders": 3, "commenters": 6, "warners": 1, "score": 2.372, "rising": 1.67, "first": "2026-02-16", "latest": "2026-09-10", "why": "", "why_is_quote": false, "has_verdict": false, "sentiment": {"recommend": 3, "neutral": 2, "compare": 0, "warn": 1}, "spark": [0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 2, 0], "listed": true, "loved": [], "caveat": "", "short_quote": "", "kind": "", "icon": false, "domain": "pychess.org", "github_repo": null, "official_url": "https://pychess.github.io/", "pricing": "", "aliases": ["PyChess", "Pychess"], "verdict": null, "praise": [{"label": "", "summary": "", "quotes": [{"id": 794255442, "item_id": 49640965, "url": "https://news.ycombinator.com/item?id=49640965", "by": "haunter", "date": "2026-09-10", "stance": "recommend", "quote": "PyChess https://pychess.github.io/about/", "excerpt": "The GUI page is a bit out of date imo, or I'm not sure how does the selection work because there are countles GUI options nowadays. Anyways some of the best options are not even mentioned like Nocheto https://nocheto.sallyx.org/ (this my favorite) ChessMD https://chessmd.org/ PyChess https://pychess.github.io/about/", "context": "", "use_case": "chess GUI", "switched_from": "", "story": "Stockfish 19"}, {"id": 752528384, "item_id": 47033024, "url": "https://news.ycombinator.com/item?id=47033024", "by": "nilslindemann", "date": "2026-02-16", "stance": "recommend", "quote": "you can play it on PyChess.", "excerpt": "It is called Placement chess, you can play it on PyChess. [1] As far as I know no tournament ever used this rule. [1] https://www.pychess.org/variants/placement", "context": "", "use_case": "playing chess variants", "switched_from": "", "story": "Magnus Carlsen Wins the Freestyle (Chess960) World Championship"}]}], "caveats": [{"label": "", "summary": "", "quotes": [{"id": 794259969, "item_id": 49641248, "url": "https://news.ycombinator.com/item?id=49641248", "by": "fileeditview", "date": "2026-09-10", "stance": "warn", "quote": "Pychess was always unstable and slow for me.", "excerpt": "I really like ChessX ( https://chessx.sourceforge.io/ ). Pychess was always unstable and slow for me. Anyways. Now I can use an even better Stockfish to benchmark my own engine..", "context": "", "use_case": "", "switched_from": "", "story": "Stockfish 19"}]}], "who": [], "tags": [], "use_cases": ["chess gui", "bughouse chess", "playing chess variants"], "compared": [{"slug": "nocheto", "name": "Nocheto", "co": 3, "switched_from": 0, "switched_to": 0}, {"slug": "chessmd", "name": "ChessMD", "co": 3, "switched_from": 0, "switched_to": 0}, {"slug": "stockfish", "name": "Stockfish", "co": 2, "switched_from": 0, "switched_to": 0}], "makers": [], "threads": [{"url": "https://news.ycombinator.com/item?id=49599992", "title": "Stockfish 19", "mentions": 4}, {"url": "https://news.ycombinator.com/item?id=47702499", "title": "Lichess and Take Take Take Sign Cooperation Agreement", "mentions": 1}, {"url": "https://news.ycombinator.com/item?id=47028227", "title": "Magnus Carlsen Wins the Freestyle (Chess960) World Championship", "mentions": 1}], "sentiment_by_month": {"2025-11": {}, "2025-12": {}, "2026-01": {}, "2026-02": {"recommend": 1}, "2026-03": {}, "2026-04": {"neutral": 1}, "2026-05": {}, "2026-06": {}, "2026-07": {}, "2026-08": {}, "2026-09": {"recommend": 2, "warn": 1, "neutral": 1}, "2026-10": {}}, "quotes": [{"id": 794409826, "item_id": 49650614, "url": "https://news.ycombinator.com/item?id=49650614", "by": "Oreb", "date": "2026-09-10", "stance": "neutral", "quote": "", "excerpt": "Shameless self promotion: If you\u2019re a Mac user and want something with native look and feel, there is also The Marvelous Brass Chessplaying Automaton (TestFlight beta): https://testflight.apple.com/join/mqfhpmHY There are also iOS and watchOS versions, but those can\u2019t run 3rd party engines like Stockfish.", "context": "", "use_case": "Chess GUI", "switched_from": "", "story": "Stockfish 19"}, {"id": 794261282, "item_id": 49641330, "url": "https://news.ycombinator.com/item?id=49641330", "by": "petilon", "date": "2026-09-10", "stance": "recommend", "quote": "", "excerpt": "If you like uncomplicated GUIs: http://mayura.com/chess/", "context": "", "use_case": "", "switched_from": "", "story": "Stockfish 19"}, {"id": 794259969, "item_id": 49641248, "url": "https://news.ycombinator.com/item?id=49641248", "by": "fileeditview", "date": "2026-09-10", "stance": "warn", "quote": "Pychess was always unstable and slow for me.", "excerpt": "I really like ChessX ( https://chessx.sourceforge.io/ ). Pychess was always unstable and slow for me. Anyways. Now I can use an even better Stockfish to benchmark my own engine..", "context": "", "use_case": "", "switched_from": "", "story": "Stockfish 19"}, {"id": 794255442, "item_id": 49640965, "url": "https://news.ycombinator.com/item?id=49640965", "by": "haunter", "date": "2026-09-10", "stance": "recommend", "quote": "PyChess https://pychess.github.io/about/", "excerpt": "The GUI page is a bit out of date imo, or I'm not sure how does the selection work because there are countles GUI options nowadays. Anyways some of the best options are not even mentioned like Nocheto https://nocheto.sallyx.org/ (this my favorite) ChessMD https://chessmd.org/ PyChess https://pychess.github.io/about/", "context": "", "use_case": "chess GUI", "switched_from": "", "story": "Stockfish 19"}, {"id": 763290882, "item_id": 47705680, "url": "https://news.ycombinator.com/item?id=47705680", "by": "NickC25", "date": "2026-04-09", "stance": "neutral", "quote": "its cousin Pychess recently debuted it and it seems to work fine", "excerpt": "Love Lichess. The only thing I love about chess.com is the ability to create custom variants, edit them, and unleash them into the wild. Been loving minihouse lately, such a cool variant. Would love to see Lichess add bughouse, as its cousin Pychess recently debuted it and it seems to work fine. Chess.com has bughouse.", "context": "", "use_case": "bughouse chess", "switched_from": "", "story": "Lichess and Take Take Take Sign Cooperation Agreement"}, {"id": 752528384, "item_id": 47033024, "url": "https://news.ycombinator.com/item?id=47033024", "by": "nilslindemann", "date": "2026-02-16", "stance": "recommend", "quote": "you can play it on PyChess.", "excerpt": "It is called Placement chess, you can play it on PyChess. [1] As far as I know no tournament ever used this rule. [1] https://www.pychess.org/variants/placement", "context": "", "use_case": "playing chess variants", "switched_from": "", "story": "Magnus Carlsen Wins the Freestyle (Chess960) World Championship"}]}